<?php

namespace app\helpers;

use yii;

/**
 * Class AliyunsmsHelper 阿里云短信发送类
 * @package app\helpers
 * @author lv 2018/03/02
 */
class AliyunsmsHelper
{
    //domain
    const ALIYUN_SEND_SMS_DOMAIN = "dysmsapi.aliyuncs.com";

    //秘钥对
    const ACCESS_KEY_ID = "LTAIYramkQ1NixIu";
    const ACCESS_KEY_SECRET = "qkt0IMTSjqAScOfLdEFuQCh6SGknKA";

    //短信模板
    const TEMPLATE_CODE = "SMS_126355343";

    //sms 默认参数
    const SMS_REGION_ID = "cn-hangzhou";
    const SMS_SEND_ACTION = "SendSms";
    const SMS_QUERY_ACTION = "QuerySendDetails";
    const SMS_VERSION = "2017-05-25";

    /**
     * @param $toPhoneNumbers   接收人手机号码
     * @param $code             验证码
     *
     * @return array
     */
    public static function sendSMS($toPhoneNumbers, $code)
    {
        $ret = [
            'errno' => 0,
            'error' => 'success',
            'data' => []
        ];

        $params = array ();
        $params["TemplateCode"] = self::TEMPLATE_CODE;//短信模板
        $params["SignName"] = "天天客服";//短信签名
        $params["PhoneNumbers"] = $toPhoneNumbers;
        $params['TemplateParam'] = Array (
            "code" => $code,
        );

        // fixme 可选: 设置发送短信流水号
        //$params['OutId'] = "12345";

        // fixme 可选: 上行短信扩展码, 扩展码字段控制在7位或以下，无特殊需求用户请忽略此字段
        //$params['SmsUpExtendCode'] = "1234567";

        // *** 需用户填写部分结束, 以下代码若无必要无需更改 ***
        if(!empty($params["TemplateParam"]) && is_array($params["TemplateParam"])) {
            $params["TemplateParam"] = json_encode($params["TemplateParam"], JSON_UNESCAPED_UNICODE);
        }

        $helpers = new AliyunsmsHelper();

        try {

            $res = $helpers->request(
                self::ACCESS_KEY_ID,
                self::ACCESS_KEY_SECRET,
                self::ALIYUN_SEND_SMS_DOMAIN,
                array_merge($params, array(
                    "RegionId" => self::SMS_REGION_ID,
                    "Action" => self::SMS_SEND_ACTION,
                    "Version" => self::SMS_VERSION,
                ))
            );

            Yii::warning('request api res:' . json_encode($res) . ', request api params: toPhotoNumber:' . $toPhoneNumbers . ', code:' . $code);
            if (!isset($res->Code) || $res->Code != "OK") {
                $ret['errno'] = 1;
                $ret['error'] = 'send sms fail';
            }
            $ret['data'] = $res;

        } catch (\Exception $e) {

            Yii::warning('request api error, exception:' . json_encode($e->getMessage(), JSON_UNESCAPED_UNICODE));
            $ret['errno'] = 1;
            $ret['error'] = 'send sms exception';

        }

        return $ret;
    }

    /**
     * 短信发送记录查询
     * @param     $toPhoneNumbers       手机号码
     * @param     $sendDate             短信发送日期，格式Ymd，支持近30天记录查询 eg:20170710
     * @param int $CurrentPage          当前页码
     * @param int $pageSize             分页大小
     *
     * @return bool|\stdClass
     */
    public function querySendDetails($toPhoneNumbers, $sendDate, $CurrentPage = 1, $pageSize = 10)
    {
        $params = array ();
        $params["PhoneNumber"] = $toPhoneNumbers;
        $params["SendDate"] = $sendDate;
        $params["PageSize"] = $pageSize;
        $params["CurrentPage"] = $CurrentPage;
        //$params["BizId"] = "yourBizId";//设置发送短信流水号

        $helpers = new AliyunsmsHelper();
        $content = $helpers->request(
            self::ACCESS_KEY_ID,
            self::ACCESS_KEY_SECRET,
            self::ALIYUN_SEND_SMS_DOMAIN,
            array_merge($params, array(
                "RegionId" => self::SMS_REGION_ID,
                "Action" => self::SMS_QUERY_ACTION,
                "Version" => self::SMS_VERSION,
            ))
        );

        return $content;
    }

    /**
     * 生成签名并发起请求
     *
     * @param $accessKeyId string AccessKeyId (https://ak-console.aliyun.com/)
     * @param $accessKeySecret string AccessKeySecret
     * @param $domain string API接口所在域名
     * @param $params array API具体参数
     * @param $security boolean 使用https
     * @return bool|\stdClass 返回API接口调用结果，当发生错误时返回false
     */
    private function request($accessKeyId, $accessKeySecret, $domain, $params, $security = false)
    {
        $apiParams = array_merge(array (
            "SignatureMethod" => "HMAC-SHA1",
            "SignatureNonce" => uniqid(mt_rand(0,0xffff), true),
            "SignatureVersion" => "1.0",
            "AccessKeyId" => $accessKeyId,
            "Timestamp" => gmdate("Y-m-d\TH:i:s\Z"),
            "Format" => "JSON",
        ), $params);
        ksort($apiParams);

        $sortedQueryStringTmp = "";
        foreach ($apiParams as $key => $value) {
            $sortedQueryStringTmp .= "&" . $this->encode($key) . "=" . $this->encode($value);
        }

        $stringToSign = "GET&%2F&" . $this->encode(substr($sortedQueryStringTmp, 1));

        $sign = base64_encode(hash_hmac("sha1", $stringToSign, $accessKeySecret . "&",true));

        $signature = $this->encode($sign);

        $url = ($security ? 'https' : 'http')."://{$domain}/?Signature={$signature}{$sortedQueryStringTmp}";

        try {
            $content = $this->fetchContent($url);
            return json_decode($content);
        } catch( \Exception $e) {
            return false;
        }
    }

    /**
     * @param $str
     *
     * @return mixed|string
     */
    private function encode($str)
    {
        $res = urlencode($str);
        $res = preg_replace("/\+/", "%20", $res);
        $res = preg_replace("/\*/", "%2A", $res);
        $res = preg_replace("/%7E/", "~", $res);
        return $res;
    }

    /**
     * @param $url
     *
     * @return mixed
     */
    private function fetchContent($url)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            "x-sdk-client" => "php/2.0.0"
        ));

        if(substr($url, 0,5) == 'https') {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        }

        $rtn = curl_exec($ch);

        if($rtn === false) {
            trigger_error("[CURL_" . curl_errno($ch) . "]: " . curl_error($ch), E_USER_ERROR);
        }
        curl_close($ch);

        return $rtn;
    }
}

